... once 3.With FID and TCD GC Oil Gas chromatograph analyzer GS-101D, an oil analyzer, is applied for the analysis ... Gas in Transformer Oil.Overview:« Gas content in insulating oil is a very important index for oil quality monitoring. GS-101D is ... ethylene, ethane, acetylene and other gases in insulating oil in the oil-filled electrical equipments (including transformers, reactors, current transformers, ...